Description

Polysulfide Rubber CAS NO 63148-67-4 is a synthetic elastomer characterized by its exceptional resistance to solvents, oils, fuels, and weathering. This material is critical for creating durable, long-lasting seals and components in demanding environments where other rubbers fail. It is primarily needed by manufacturers in the aerospace, automotive, construction, and marine industries for high-performance sealing and adhesive applications.

Application

• Aerospace Sealing: Used in fuel tank sealants, windshield and canopy seals, and airframe sealing due to its excellent fuel resistance and low-temperature flexibility.
• Automotive Gaskets & Sealants: Employed in formed-in-place gaskets (FIPG), windshield bonding, and fuel system seals.
• Construction Glazing & Insulating Glass: A key component in secondary sealants for insulating glass units and structural glazing sealants.
• Marine and Offshore Sealants: Utilized for hull and deck seams, window bedding, and other marine applications requiring water and weather resistance.
• Industrial Adhesives & Coatings: Serves as a base for high-performance adhesives and protective coatings resistant to chemicals and abrasion.
• Oil & Gas Industry Components: Used in gaskets, seals, and hoses that contact crude oil, natural gas, and drilling fluids.

Basic Information

Product Name	Polysulfide Rubber
CAS No.	63148-67-4
Molecular Formula	(C4H8S2)n
Molecular Weight	Varies (Polymer)
Synonyms	Thiokol Rubber; Polysulfide Polymer; Liquid Polysulfide Rubber; LP; Polysulfide Elastomer; Poly(ethylene tetrasulfide); PST; Thiokol LP
EINECS	Contact for details

Quality Control

Our Polysulfide Rubber is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters such as viscosity, sulfur content, and mechanical properties to ensure consistent performance and compliance with relevant industry specifications. Comprehensive Certificates of Analysis (COA) are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources to prevent premature curing or degradation.

Specification

Item	Specification
Appearance	Amber to dark brown viscous liquid/paste
Viscosity (25°C)	Contact for details
Shore A Hardness (Cured)	Contact for details
Tensile Strength (Cured)	Contact for details
Elongation at Break (Cured)	Contact for details
Sulfur Content	Contact for details
Moisture Content	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.